| Digest Nr | Subject and Author |
 |
| 2018.04.23.03 | 3D Printed Metal Parts May Be Porous, from John J. Breen |
| 2018.04.22.04 | 3D Printed Metal Parts May Be Porous, from Doug Bullock |
| 2010.05.30.04 | Sealing Porous Bellows Cloth, from Tom Sendall |
| 2010.05.12.04 | Sealing Porous Bellows Cloth, from Steve Marx |
| 2010.05.10.05 | Sealing Porous Bellows Cloth, from John A. Tuttle |
| 2010.05.09.04 | Sealing Porous Bellows Cloth, from Jeff Bridges |
| 2010.05.09.03 | Sealing Porous Bellows Cloth, from Steve Dibble |
| 2010.05.08.05 | Sealing Porous Bellows Cloth, from Noel Butler |
| 2010.05.05.11 | Sealing Porous Bellows Cloth, from Jim McFarland |
| 2010.05.04.13 | Sealing Porous Bellows Cloth, from Bill Chapman |
| 2010.05.03.07 | Sealing Porous Bellows Cloth, from Craig Smith |
| 2010.05.02.05 | Sealing Porous Bellows Cloth, from Tom Sendall |
| 2000.03.21.14 | Measuring Airflow Through Porous Wood, from Brian Smith |
| 2000.03.18.07 | Measuring Airflow Through Porous Wood, from Mike Kitner |
| 2000.03.16.01 | Measuring Airflow Through Porous Wood, from Craig Smith |
| 1997.05.21.11 | Porous Pneumatic and Motor Cloth, from Larry Broadmoore |
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